Apple
AAPL, -1.92%
saw its shares slide more than 5% to close at $169.04 following the Macworld keynote, unaided by Jobs' unveiling of an online movie-rental service, a new ultra-thin notebook computer and other splashy moves. Latest news on Apple.

The shares had gained more than 3.5% in the previous session.

The tech sector as a whole followed the broader market into negative territory, given weak retail-sales results and large losses from Dow components. See Market Snapshot.

The tech-heavy Nasdaq Composite Index
$COMPQ
fell 2.5% to close at 2,418. Meanwhile the Morgan Stanley High Tech 35 Index
MSH, -1.96%
also fell more than 2%, and the Philadelphia Semiconductor Index
SOX, -2.58%
closed more than 3% lower.

Chip stocks struggled, with Advanced Micro Devices Inc.
AMD, -2.30%
falling more than 4% and Micron
MU, -3.49%
off 8%. Intel
INTC, -1.79%
shares fell more than 1% ahead of its fourth-quarter earnings report. Analysts expect Intel to report a boost in revenue when it announces results after the closing bell. Read more.

One gainer in tech was Applied Materials Inc.
AMAT, -3.01%
which saw its shares rise slightly to $16.95. The maker of semiconductor-manufacturing tools said in a premarket announcement that it plans to lay off about 1,000 workers in a cost-cutting move. See full story.

Computer-hardware makers Hewlett-Packard Co.
HPQ, -1.74%
and Dell Inc.
DELL
both lost more than 2% by the close.

Internet bellwethers also saw broad losses. Shares of Yahoo Inc.
YHOO
fell more than 3%, while those of eBay Inc.
EBAY, -1.44%
fell more than 4%. Google Inc.
GOOG, -1.72%
shares were off more than 2% by the close, after announcing a collaboration deal to make applications available via wireless carrier Clearwire Corp.
CLWR

Intraday Data provided by SIX Financial Information and subject to terms of use.
Historical and current end-of-day data provided by SIX Financial Information.
All quotes are in local exchange time. Real-time last sale data for U.S. stock quotes reflect trades reported through Nasdaq only.
Intraday data delayed at least 15 minutes or per exchange requirements.